<template>
  <div class="app-container">
    <el-row>
      <el-col :span="24" class="card-box">
        <el-card>
          <div slot="header"><span>基本信息</span></div>
          <div class="el-table el-table--enable-row-hover el-table--medium">
            <table cellspacing="0" style="width: 100%">
              <tbody>
                <tr>
                  <td class="el-table__cell is-leaf"><div class="cell">Redis版本</div></td>
                  <td class="el-table__cell is-leaf">
                    <div class="cell" v-if="cache.info">{{ cache.info.redis_version }}</div>
                  </td>
                  <td class="el-table__cell is-leaf"><div class="cell">运行模式</div></td>
                  <td class="el-table__cell is-leaf">
                    <div class="cell" v-if="cache.info">{{ cache.info.redis_mode == 'standalone' ? '单机' : '集群' }}</div>
                  </td>
                  <td class="el-table__cell is-leaf"><div class="cell">端口</div></td>
                  <td class="el-table__cell is-leaf">
                    <div class="cell" v-if="cache.info">{{ cache.info.tcp_port }}</div>
                  </td>
                  <td class="el-table__cell is-leaf"><div class="cell">客户端数</div></td>
                  <td class="el-table__cell is-leaf">
                    <div class="cell" v-if="cache.info">{{ cache.info.connected_clients }}</div>
                  </td>
                </tr>
                <tr>
                  <td class="el-table__cell is-leaf"><div class="cell">运行时间(天)</div></td>
                  <td class="el-table__cell is-leaf">
                    <div class="cell" v-if="cache.info">{{ cache.info.uptime_in_days }}</div>
                  </td>
                  <td class="el-table__cell is-leaf"><div class="cell">使用内存</div></td>
                  <td class="el-table__cell is-leaf">
                    <div class="cell" v-if="cache.info">{{ cache.info.used_memory_human }}</div>
                  </td>
                  <td class="el-table__cell is-leaf"><div class="cell">使用CPU</div></td>
                  <td class="el-table__cell is-leaf">
                    <div class="cell" v-if="cache.info">{{ parseFloat(cache.info.used_cpu_user_children).toFixed(2) }}</div>
                  </td>
                  <td class="el-table__cell is-leaf"><div class="cell">内存配置</div></td>
                  <td class="el-table__cell is-leaf">
                    <div class="cell" v-if="cache.info">{{ cache.info.maxmemory_human }}</div>
                  </td>
                </tr>
                <tr>
                  <td class="el-table__cell is-leaf"><div class="cell">AOF是否开启</div></td>
                  <td class="el-table__cell is-leaf">
                    <div class="cell" v-if="cache.info">{{ cache.info.aof_enabled == '0' ? '否' : '是' }}</div>
                  </td>
                  <td class="el-table__cell is-leaf"><div class="cell">RDB是否成功</div></td>
                  <td class="el-table__cell is-leaf">
                    <div class="cell" v-if="cache.info">{{ cache.info.rdb_last_bgsave_status }}</div>
                  </td>
                  <td class="el-table__cell is-leaf"><div class="cell">Key数量</div></td>
                  <td class="el-table__cell is-leaf">
                    <div class="cell" v-if="cache.dbSize">{{ cache.dbSize }}</div>
                  </td>
                  <td class="el-table__cell is-leaf"><div class="cell">网络入口/出口</div></td>
                  <td class="el-table__cell is-leaf">
                    <div class="cell" v-if="cache.info">
                      {{ cache.info.instantaneous_input_kbps }}kps/{{ cache.info.instantaneous_output_kbps }}kps
                    </div>
                  </td>
                </tr>
              </tbody>
            </table>
          </div>
        </el-card>
      </el-col>

      <el-col :span="12" class="card-box">
        <el-card>
          <div slot="header"><span>命令统计</span></div>
          <div class="el-table el-table--enable-row-hover el-table--medium">
            <div ref="commandstats" style="height: 412px" />
          </div>
        </el-card>
      </el-col>

      <el-col :span="12" class="card-box">
        <el-card>
          <div slot="header">
            <span>内存信息</span>
          </div>
          <div class="el-table el-table--enable-row-hover el-table--medium">
            <div ref="usedmemory" style="height: 412px" />
          </div>
        </el-card>
      </el-col>
    </el-row>
  </div>
</template>

<script>
import * as echarts from 'echarts';

import axios from 'axios';

const baseApiUrl = 'api/cache/metrics';

export default {
  name: 'Cache',
  data() {
    return {
      // 统计命令信息
      commandstats: null,
      // 使用内存
      usedmemory: null,
      // cache信息
      cache: [],
    };
  },
  created() {
    this.initData();
  },
  methods: {
    /** 查缓存询信息 */
    initData() {
      axios.get(baseApiUrl).then(response => {
        this.cache = response.data;

        this.commandstats = echarts.init(this.$refs.commandstats, 'macarons');
        this.commandstats.setOption({
          tooltip: {
            trigger: 'item',
            formatter: '{a} <br/>{b} : {c} ({d}%)',
          },
          series: [
            {
              name: '命令',
              type: 'pie',
              roseType: 'radius',
              radius: [15, 95],
              center: ['50%', '38%'],
              data: response.data.commandStats,
              animationEasing: 'cubicInOut',
              animationDuration: 1000,
            },
          ],
        });
        this.usedmemory = echarts.init(this.$refs.usedmemory, 'macarons');
        this.usedmemory.setOption({
          tooltip: {
            formatter: '{b} <br/>{a} : ' + this.cache.info.used_memory_human,
          },
          series: [
            {
              name: '峰值',
              type: 'gauge',
              min: 0,
              max: 1000,
              detail: {
                formatter: this.cache.info.used_memory_human,
              },
              data: [
                {
                  value: parseFloat(this.cache.info.used_memory_human),
                  name: '内存消耗',
                },
              ],
            },
          ],
        });
      });
    },
  },
};
</script>
